No comment on the numbers themselves but this is the sort of calculation that has to be done.
When an epidemic strikes and containment has failed, it makes sense to try and manage herd immunity. Reducing the rate of infection by intervening allows us to minimise the total number of people who get infected, reduce the peak number of infections and buy ourselves time. But how much should we be willing to spend?
For the thing about “Ee’s not worf it Sharon” is that sometimes ‘ee in’t.